The Orion Nebula looks like a fluffy cloud against a dark space background
Nation World News – One of the most beautiful and spectacular regions of the night sky can be found in the constellation Orion. Between the stars Alnitak, Saif and Rigel floats a very thick cloud of interstellar dust and gas.
reported from science alert Sunday (14/8/2022), this is the Orion Nebula, the nest of material where baby stars are born and one of the most studied and photographed objects in the Milky Way.
It spans 24 light years, so close and so large that it is visible with the naked eye. Because of their relative proximity (about 1,344 light-years from the Sun), these spectacular clouds are an important laboratory for understanding star formation.
All you have to do is zoom in, and look closely at the details. This newly released Hubble image of the Orion Nebula looks like a fluffy cloud of color against the velvety dark background of space. But at the center is a rare and beautiful cosmic contact, powered by the baby star IX Ori.
That contact, called HH 505, is known as the Herbig-Haro object. Creating them requires very special conditions.
First, you need a baby star. It is formed when dense nodes in molecular clouds, such as the Orion star nursery, swirl, collapsing under their own mass. As it spins, it picks up matter from the surrounding clouds, allowing the baby stars to grow.
As this material forms in baby stars, powerful jets of plasma can be launched from the stellar poles. It is thought that some of the material moving around the star is diverted to the poles along the star’s external magnetic field lines. These magnetic field lines act as particle accelerators, so that when material reaches the poles, it can be launched at incredible speeds.
A Herbig-Haro object is formed when this beam, traveling at breakneck speed, violently hits the surrounding gas, shockingly heating it so that it glows. This creates what appear to be two glowing sticks of light emanating from the baby star.
These structures change rapidly, so astronomers can study them to understand how baby stars move matter through the clouds around them. This cuts off the supply of gas and dust that feeds growing stars, and determines the size of mature stars.